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10th Class Biology Chapter 16 Man and His Environment English Medium KPK Boards Online Mcqs MCQs With Answers

Question # 1

Organisms in the ecosystem that are responsible for the recycling of plant and animal wastes are:

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Consumers

Producers

Decomposer

Competitors

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Question # 2

The materials flow forms one trophic level to the next by means of:

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food chains

food webs

energy pyramids

both A and B

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Question # 3

The utilization of nitrates by organisms is called.

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Nitrification

Ammonification

Assimilation

Denitrification

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Question # 4

Which of the following is the abiotic part of ecosystem.

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Grass

Goat

Lion

Soil

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Question # 5

Largest unit of Ecology is.

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Species

Community

Ecosystem

Biosphere

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Question # 6

A group of organisms, similar to one another, which can interbreed in nature and produce fertile off springs.

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Species

Genus

Family

Population

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Question # 7

Abiotic component of ecosystem is:

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Producers

Herbivores

Camivore

Oxygen

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Question # 8

The populations that live in a habitat nad interact with one another are collectively called:

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Biosphere

Ecosystem

Community

Species

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Question # 9

Which of the following is not an example of green house gas?

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CO₂

Methane

Oxygen

Nitrous oxide

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Question # 10

A symbiotic interaction in which both partners get benefits.

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Mutualism

Commensalism

Parasitism

Predation

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Question # 11

Identify the correctly matched pair:

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Rainfall biotic factors in ecosystem

Global warming formation of fossil fuels

Renewable natural resources air

Corn secondary consumer

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Question # 12

Which form of nitrogen is taken by the producers of the ecosystem?

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Nitrogen gas

Ammonia

Nitrates

Nitrites

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